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avanturin [10]
3 years ago
13

a system of equations has infinitely many solutions. if 2y – 4x = 6 is one of the equations, which could be the other equation?

y = 2x 6 y = 4x 6 –y = –2x – 3 –y = –4x 6
Mathematics
2 answers:
deff fn [24]3 years ago
4 0
<span>A system of equations has infinitely many solutions when the two lines representing the equations coincide. i.e. the two equations are the same or a multiple of each other.
2y - 4x = 6
2y = 4x + 6
2y = 2(2x + 3)
y = 2x + 3
-y = -(2x + 3)
-y = -2x - 3
Hence the other equation is -y = -2x - 3</span>
BabaBlast [244]3 years ago
3 0

Answer:–y = –2x – 3

it's C on edg

Step-by-step explanation:

2y - 4x = 6

2y = 4x + 6

2y = 2(2x + 3)

y = 2x + 3

-y = -(2x + 3)

-y = -2x - 3

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5c squared- d squared+3/2c - 4d...c= -1. d= -4​
riadik2000 [5.3K]

For this case we have the following expression:

5c ^ 2-d ^ 2 + \frac {3} {2} c-4d

We must find the value of the expression when:

c = -1\\d = -4

Substituting we have:

5 (-1) ^ 2 - (- 4) ^ 2 + \frac {3} {2} (- 1) -4 (-4) =\\5 (1) -16- \frac {3} {2} + 16 =\\5-16- \frac {3} {2} + 16 =\\-11- \frac {3} {2} + 16 =\\- \frac {25} {2} + 16 =\\\frac {-25 + 32} {2} =\\\frac {7} {2}

Finally, the value of the expression is:

\frac {7} {2}

ANswer:

\frac {7} {2}

5 0
3 years ago
What is the slope of the line?
butalik [34]

let us assume that make inclination θ

with positive direction of x-axis then slope(m) of the line is given by

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Hope it helps ☺☺

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8 0
3 years ago
Read 2 more answers
You and some friends are going to the fair. Small rides costs 4 tickets and while big rides costs 7 tickets. You and your friend
tensa zangetsu [6.8K]

Answer:

<em>4x+7y≤250</em>

Step-by-step explanation:

<u>Inequalities</u>

Let's call:

x = number of small rides

y = number of big rides

Since each small ride costs 4 tickets, x rides cost 4x tickets.

Since each big ride costs 7 tickets, y rides cost 7y tickets.

The total number of tickets is the sum of both:

Total tickets = 4x+7y

The friends have 250 tickets, so the total tickets of the rides cannot be greater than the 250 tickets available, thus:

4x+7y≤250

7 0
3 years ago
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Harlamova29_29 [7]

Answer:

y=-4x^{2} -24x+64

Step-by-step explanation:

y=-2(x-2)(x+8)-2(x-2)(x+8)

y=-2x^{2} +12x+32-2(x-2)(x+8)

y=-2x^{2} -12x+32-2x^{2} -12x+32

y=-4x^{2} -24x+64

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The distance between point Q and point P is 6 1/2 units .Which number could represent point Q?please help me
Elden [556K]

Answer: Zero and Any real number

Step-by-step explanation:

Point Q could be represented by any real numbers. And zero if it's located at the origin. The same is applicable to value at point P. It's just that at P, the value can't be equal to Zero.

5 0
3 years ago
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